1
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

A Carnot engine has the same efficiency between 600 K to 300 K and 1600 K to x K, then the value of x is

A
1600 K
B
800 K
C
819 K
D
900 K
2
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

A vessel contains one mole of O2 gas (molar mass 32) at a temperature T. The pressure of the gas is p. An identical vessel containing one mole of He gas (molar mass 4) at a temperature 2T has a pressure of

A
$${p \over 8}$$
B
p
C
2p
D
8p
3
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

The figure shows graphs of pressure (p) versus density (d) for an ideal gas at two temperatures T1 and T2, then

BITSAT 2020 Physics - Heat and Thermodynamics Question 10 English

A
T1 > T2
B
T1 < T2
C
T1 = T2
D
None of these
4
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

When 2 moles of a monoatomic gas are mixed with 3 moles of a diatomic gas, the value of adiabatic exponent for the mixture is

A
$${{15} \over {16}}$$
B
$${{7} \over {5}}$$
C
$${{31} \over {21}}$$
D
$${{38} \over {59}}$$
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